Bash Line Editor (ble.sh) is a command line editor written in pure Bash which replaces the default GNU Readline. It adds syntax highlighting, auto suggestions, vim modes, and more to Bash interactive sessions.

Bash is the shell, or command-line interpreter, of the GNU system. This variant logs the history to syslog.

Bash is the shell, or command-line interpreter, of the GNU system. It is compatible with the Bourne Shell, but it also integrates useful features from the Korn Shell and the C Shell and new improvements of its own. It allows command-line editing, unlimited command history, shell functions and aliases, and job control while still allowing most sh scripts to be run without modification.

Bash-ctypes is a Bash plugin that provides a foreign function interface (FFI) directly in your shell. In other words, it allows you to call routines in shared libraries from within Bash.

This package provides a SAC interface by the W3C. SAC is an interface for CSS parsers.

This package provides a SVG interface.

Batik is a Java-based toolkit for applications or applets that want to use images in the Scalable Vector Graphics (SVG) format for various purposes, such as display, generation or manipulation.

This package provides a SAC interface by the W3C. SAC is an interface for CSS parsers.

This package provides a SVG 1.0 interface.

This package provides XMLGraphics constants (originally from batik).

The Boehm-Demers-Weiser conservative garbage collector can be used as a garbage collecting replacement for C malloc or C++ new. It allows you to allocate memory basically as you normally would, without explicitly deallocating memory that is no longer useful. The collector automatically recycles memory when it determines that it can no longer be otherwise accessed.

The collector is also used by a number of programming language implementations that either use C as intermediate code, want to facilitate easier interoperation with C libraries, or just prefer the simple collector interface.

Alternatively, the garbage collector may be used as a leak detector for C or C++ programs, though that is not its primary goal.

The Boehm-Demers-Weiser conservative garbage collector can be used as a garbage collecting replacement for C malloc or C++ new. It allows you to allocate memory basically as you normally would, without explicitly deallocating memory that is no longer useful. The collector automatically recycles memory when it determines that it can no longer be otherwise accessed.

The collector is also used by a number of programming language implementations that either use C as intermediate code, want to facilitate easier interoperation with C libraries, or just prefer the simple collector interface.

Alternatively, the garbage collector may be used as a leak detector for C or C++ programs, though that is not its primary goal.

This C library provides semi-portable access to hardware-provided atomic memory update operations on a number of architectures. These might allow you to write code that does more interesting things in signal handlers, write lock-free code, experiment with thread programming paradigms, etc.

The Boehm-Demers-Weiser conservative garbage collector can be used as a garbage collecting replacement for C malloc or C++ new. It allows you to allocate memory basically as you normally would, without explicitly deallocating memory that is no longer useful. The collector automatically recycles memory when it determines that it can no longer be otherwise accessed.

The collector is also used by a number of programming language implementations that either use C as intermediate code, want to facilitate easier interoperation with C libraries, or just prefer the simple collector interface.

Alternatively, the garbage collector may be used as a leak detector for C or C++ programs, though that is not its primary goal.

The Boehm-Demers-Weiser conservative garbage collector can be used as a garbage collecting replacement for C malloc or C++ new. It allows you to allocate memory basically as you normally would, without explicitly deallocating memory that is no longer useful. The collector automatically recycles memory when it determines that it can no longer be otherwise accessed.

The collector is also used by a number of programming language implementations that either use C as intermediate code, want to facilitate easier interoperation with C libraries, or just prefer the simple collector interface.

Alternatively, the garbage collector may be used as a leak detector for C or C++ programs, though that is not its primary goal.

This package provides benchmarks for implementations of the Message Passing Interface (MPI). It contains MPI performance measurements for point-to-point and global communication, and file, operations for a range of message sizes. The generated benchmark data fully characterize:

• Performance of a cluster system, including node performance, network latency, and throughput;

• Efficiency of the MPI implementation.

The time utility is a simple and often effective way of measuring how long a command takes to run (wall time). Unfortunately, running a command once can give misleading timings. multitime is, in essence, a simple extension to time which runs a command multiple times and prints the timing means, standard deviations, mins, medians, and maxes having done so. This can give a much better understanding of the command's performance.

fio is a tool that will spawn a number of threads or processes doing a particular type of I/O action as specified by the user. The typical use of fio is to write a job file matching the I/O load one wants to simulate.

sysbench is a scriptable multi-threaded benchmark tool based on LuaJIT. It is most frequently used for database benchmarks, but can also be used to create arbitrarily complex workloads that do not involve a database server. sysbench comes with the following bundled benchmarks:

oltp_*.lua

A collection of OLTP-like database benchmarks.

fileio

A filesystem-level benchmark.

cpu

A simple CPU benchmark.

memory

A memory access benchmark.

threads

A thread-based scheduler benchmark.

mutex

A POSIX mutex benchmark.

It includes features such as:

• Extensive statistics about rate and latency is available, including latency percentiles and histograms.

• Low overhead even with thousands of concurrent threads. sysbench is capable of generating and tracking hundreds of millions of events per second.

• New benchmarks can be easily created by implementing pre-defined hooks in user-provided Lua scripts.

Microbenchmarks suite to evaluate MPI and PGAS (OpenSHMEM, UPC, and UPC++) libraries for CPUs and GPUs.

vkmark offers a suite of scenes that can be used to measure various aspects of Vulkan performance. The way in which each scene is rendered is configurable through a set of options.

interbench is designed to benchmark interactivity on Linux. It is designed to measure the effect of changes in Linux kernel design or system configuration changes such as CPU, I/O scheduler and filesystem changes and options. With careful benchmarking, different hardware can be compared.

BenchExec is a framework for reliable benchmarking, which takes care of important low-level details for accurate, precise, and reproducible measurements. In particular, it makes use of cgroups, kernel namespaces, and overlay filesystems to restrict interference of the executed tool with the benchmarking host.

Locust is a performance testing tool that aims to be easy to use, scriptable and scalable. The test scenarios are described in plain Python. It provides a web-based user interface to visualize the results in real-time, but can also be run non-interactively. Locust is primarily geared toward testing HTTP-based applications or services, but it can be customized to test any system or protocol.

Note: Locust will complain if the available open file descriptors limit for the user is too low. To raise such limit on a Guix System, refer to info guix --index-search=pam-limits-service-type.